macOS is the operating system at the heart of Mac computers. The latest version, macOS High Sierra, builds on some of the innovative functions and level of performance that were introduced with the previous version, macOS Sierra, to provide a stylish, effective and powerful operating system for your Mac desktop or laptop computer. This book opens up by explaining the foundations of macOS: the Dock and the Finder. Then, it reveals a raft of ways in which you can make the most of macOS High Sierra.